The latest news on the condition of Rep. Jesse Jackson Jr., who has been getting treatment at the Mayo Clinic after collapsing at his home and suffering from what his wife called a "debilitating depression," is that he has been diagnosed with bipolar II disorder, according to the Chicago Tribune. The clinic made the announcement in a statement released today, which also included information on the nature of what's being called a "disruptive, long-term condition."

Mayo Clinic said the diagnosis came after extensive evaluation. "Congressman Jackson is responding well to the treatment and regaining his strength," it said in the statement.

The statement added:

"Many Americans have bipolar disorder. Bipolar II disorder is a treatable condition that affects parts of the brain controlling emotion, thought and drive and is most likely caused by a complex set of genetic and environmental factors. Congressman Jackson underwent bariatric surgery in 2004, specifically a duodenal switch. This type of surgery is increasingly common in the US and can change how the body absorbs food, liquids, vitamins, nutrients and medications."

"Congressman Jackson has asked Mayo Clinic to distribute this information on his behalf. He and his family remain grateful for support and prayers offered and received on his behalf."

In Washington, Jackson's spokesman, Frank Watkins, said he had no further details. "The only thing I know is what is in the press release," Watkins said. "When he went there, we were told the Mayo Clinic would handle all releases related to his health condition." …

According to the Mayo Clinic website, bipolar disorder — sometimes called manic-depressive disorder — is associated with mood swings that range from the lows of depression to the highs of mania …